$result: $result + 1;\n    }\n  }\n  $result: $result * $factor * $sign;\n  $dividend-unit: unit($dividend);\n  $divisor-unit: unit($divisor);\n  $unit-map: (\n    \"px\": 1px,\n    \"rem\": 1rem,\n    \"em\": 1em,\n    \"%\": 1%\n  );\n  @if ($dividend-unit != $divisor-unit and map-has-key($unit-map, $dividend-unit)) {\n    $result: $result * map-get($unit-map, $dividend-unit);\n  }\n  @return $result;\n}\n\n// Remove px-unit from $rfs-base-font-size for calculations\n@if $rfs-base-font-size-unit == \"px\"...

	if !reflect.DeepEqual(gotValue, expectedValue) {
		c.Fatalf("Test %s expected %v, got %v", c.testType, expectedValue, gotValue)
	}
}

func verifyError(c *check, response *http.Response, code, description string, statusCode int) {
	c.Helper()
	data, err := io.ReadAll(response.Body)
	c.Assert(err, nil)
	errorResponse := APIErrorResponse{}
	err = xml.Unmarshal(data, &errorResponse)
	c.Assert(err, nil)
	c.Assert(errorResponse.Code, code)

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### 도커파일

이제 같은 프로젝트 디렉터리에 다음과 같은 파일 `Dockerfile`을 생성합니다:

```{ .dockerfile .annotate }
# (1)
FROM python:3.9

	PRFM	8(R12), PLIL3STRM               // 8d0580f9
	PRFM	(R8), $25                       // 190180f9
	PRFM	8(R9), $30                      // 3e0580f9
	NOOP                                    // 1f2003d5
	HINT $0                                 // 1f2003d5
	DMB	$1
	SVC

// encryption
	SHA256H	V9.S4, V3, V2                   // 6240095e
	SHA256H2	V9.S4, V4, V3           // 8350095e

10134..10136  ; disallowed                             # NA   <reserved-10134>..<reserved-10136>
10137..1013F  ; valid                  ;      ; NV8    # 4.0  AEGEAN WEIGHT BASE UNIT..AEGEAN MEASURE THIRD SUBUNIT
10140..1018A  ; valid                  ;      ; NV8    # 4.1  GREEK ACROPHONIC ATTIC ONE QUARTER..GREEK ZERO SIGN

APIが必要とするもう一つの大きな機能はデータのバリデーションであり、特定のパラメータが与えられた場合にデータが有効であることを確認することです。例えば、あるフィールドがランダムな文字列ではなく `int` であることなどです。これは特に受信するデータに対して便利です。

データバリデーションの仕組みがなければ、すべてのチェックを手作業でコードに実装しなければなりません。

これらの機能は、Marshmallowが提供するものです。Marshmallowは素晴らしいライブラリで、私も以前に何度も使ったことがあります。

- github.com/armon/consul-api: [eb2c6b5](https://github.com/armon/consul-api/tree/eb2c6b5)
- github.com/bifurcation/mint: [93c51c6](https://github.com/bifurcation/mint/tree/93c51c6)
- github.com/caddyserver/caddy: [v1.0.3](https://github.com/caddyserver/caddy/tree/v1.0.3)
- github.com/cenkalti/backoff: [v2.1.1+incompatible](https://github.com/cenkalti/backoff/tree/v2.1.1)

round on its axis--'

  `Talking of axes,' said the Duchess, `chop off her head!'

  Alice glanced rather anxiously at the cook, to see if she meant
to take the hint; but the cook was busily stirring the soup, and
seemed not to be listening, so she went on again:  `Twenty-four
hours, I THINK; or is it twelve?  I--'

  `Oh, don't bother ME,' said the Duchess; `I never could abide

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

同じプロジェクト・ディレクトリに`Dockerfile`というファイルを作成します：

```{ .dockerfile .annotate }
# (1)
FROM python:3.9

- github.com/stretchr/testify: [v1.7.0 → v1.8.0](https://github.com/stretchr/testify/compare/v1.7.0...v1.8.0)
- go.uber.org/goleak: v1.1.10 → v1.2.0
- golang.org/x/lint: 6edffad → 83fdc39
- gopkg.in/yaml.v3: 496545a → v3.0.1
- sigs.k8s.io/apiserver-network-proxy/konnectivity-client: v0.0.30 → v0.0.33

### Removed
_Nothing has changed._



# v1.24.6